Improved submarine sinking and floating principle exploration model

Abstract

The utility model discloses an improved submarine sinking and floating principle exploration model, which belongs to a teaching model and comprises an outer bottle body, an axial hole is arranged at the front part of the outer bottle body, an inner bottle body is arranged in the axial hole, a sealing layer is arranged between the outer edge of the front end of the inner bottle body and the inner edge of the axial hole, and a sealing cavity is formed by the inner wall of the outer bottle body and the outer wall of the inner bottle body. A water inlet hole and an air inlet hole are formed in any position of the outer bottle body, the water inlet hole and the air inlet hole are respectively communicated with the sealing cavity, and the air inlet hole is used for being communicated with an external air supply device through a pipeline. By designing the structure that the outer bottle body and the inner bottle body are sleeved with each other, a sealed cavity can be formed in the area between the outer bottle body and the inner bottle body, the model sinks when water enters the sealed cavity, the model floats when the water is discharged out of the sealed cavity, and therefore the model is closer to the structure of a real submarine; and meanwhile, the sealed space in the inner bottle body can ensure that the articles are not wetted in the test process.

Description

Technical Field

[0001] This utility model relates to a teaching model, and more specifically, it relates to an improved model for exploring the principle of submarine buoyancy. Background Technology

[0002] Inquiry-based learning is a primary method for students to learn science in compulsory education. The "Compulsory Education Science Curriculum Standards (2022 Edition)" emphasizes students' active participation, hands-on activities, and experiential learning, guiding them through the process of scientific inquiry and technological and engineering practice. The principles of submarine buoyancy are part of the compulsory education curriculum, and guiding students to understand these principles through inquiry-based learning requires effective experimental equipment. Submarine buoyancy control utilizes Archimedes' principle: when a submarine needs to submerge, it fills its ballast tanks with water, increasing its total weight; when it needs to surface, it drains the water, reducing its total weight. Currently, common demonstration models of submarine buoyancy typically involve installing a balloon inside a plastic shell; changing the size of the balloon alters the amount of water inside the shell, thus controlling the submarine's buoyancy. While the aforementioned submarine model can demonstrate the principles of buoyancy and sinking to some extent, its significant structural differences from a real submarine lead to the following problems: First, the model only has a water tank and a variable-sized air chamber, lacking a cargo compartment, making it difficult to demonstrate the submarine's cargo-carrying function and test its load-bearing capacity. Second, if it is necessary to test the submarine's load-bearing capacity, heavy objects must be placed in the water tank, which will wet the objects and make the operation extremely inconvenient. Third, real submarines do not have elastic air bladders like balloons to store air, which can easily mislead students. Therefore, common submarine buoyancy and sinking principle demonstration models cannot effectively demonstrate the submarine's cargo-carrying function and load-bearing capacity, and are insufficient to support scientific inquiry. Further research and improvement of the structure of such demonstration models are necessary. Utility Model Content

[0003] One of the objectives of this invention is to address the aforementioned shortcomings by providing an improved model for exploring the principles of submarine buoyancy and sinking. This aims to solve the technical problems in the prior art, such as the significant differences between similar models and the actual structure of submarines, the inability to effectively demonstrate the cargo-carrying function and load-bearing capacity of submarines, and the difficulty in effectively supporting scientific research.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model provides an improved submarine buoyancy principle research model, including an outer bottle body. The front part of the outer bottle body is provided with an axial hole, and an inner bottle body is installed in the axial hole. A sealing layer is provided between the outer edge of the front end of the inner bottle body and the inner edge of the axial hole. The inner wall of the outer bottle body and the outer wall of the inner bottle body form a sealed cavity. A water inlet and an air inlet are provided at any position on the outer bottle body. The water inlet and the air inlet are respectively connected to the sealed cavity. The air inlet is used to connect to an external air supply device through a pipe.

[0006] As a preferred embodiment, a further technical solution is: the external air supply device is a piston injector, the air inlet is located in the axial position of the outer bottle body, and the water inlet is located in the radial position of the outer bottle body.

[0007] A further technical solution is that a counterweight is fixed to the outside of the outer bottle.

[0008] A further technical solution is: the sealing layer is a rubber layer, and a detachable bottle cap is installed on the inner bottle body. The bottle cap is used to seal the bottle mouth of the inner bottle body, so that a sealed space is formed inside the inner bottle body.

[0009] Compared with the prior art, one of the beneficial effects of this utility model is that by designing a structure in which the outer bottle and the inner bottle are nested together, a sealed cavity can be formed between them. When water enters the sealed cavity, the model sinks, and when the water is discharged from the sealed cavity, the model floats, thus more closely resembling the structure of a real submarine. At the same time, the sealed space inside the inner bottle can ensure that the items do not get wet during the experiment. Furthermore, the improved submarine sinking and floating principle exploration model provided by this utility model has a simple structure, is suitable for industrial production, and is easy to promote. Attached Figure Description

[0010] Figure 1 This is a structural schematic diagram used to illustrate one embodiment of the present invention.

[0011] Figure 2 This is a diagram illustrating the usage state of one embodiment of the present invention.

[0012] In the diagram, 1 is the outer bottle body, 11 is the axial hole, 12 is the water inlet, 13 is the air inlet, 2 is the inner bottle body, 21 is the sealing layer, 22 is the bottle cap, 3 is the sealing cavity, 4 is the pipe, 5 is the external air supply device, and 6 is the counterweight. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] refer to Figure 1As shown, one embodiment of this utility model is an improved submarine buoyancy principle research model, including an outer bottle 1. The front of the outer bottle 1 is provided with an axial hole 11, and an inner bottle 2 is installed in the axial hole 11, that is, the outer bottle 1 is fitted on the outside of the inner bottle 2. A sealing layer 21 is provided between the outer edge of the front end of the inner bottle 2 and the inner edge of the axial hole 11. The sealing layer 21 can be a rubber layer, which is wrapped around the front end of the inner bottle 2, so that the inner wall of the outer bottle 1 and the outer wall of the inner bottle 2 form a sealed cavity 3. At the same time, a water inlet 12 and an air inlet 13 are provided at any position of the outer bottle 1. The water inlet 12 and the air inlet 13 are respectively connected to the sealed cavity 3. The air inlet 13 is used to connect to an external air supply device 5 through a pipe 4.

[0015] Furthermore, in this embodiment, the external air supply device 5 can be a piston injector, with the air inlet 13 positioned axially on the outer bottle body 1 and the water inlet 12 positioned radially on the outer bottle body 1. A counterweight 6 is also installed on the outside of the outer bottle body 1.

[0016] In this embodiment, by designing a structure in which the outer bottle 1 and the inner bottle 2 are nested together, a sealed cavity 3 can be formed between the two. When water enters the sealed cavity 3, the model sinks, and when the water is discharged from the sealed cavity 3, the model floats, thus more closely resembling the structure of a real submarine. At the same time, the sealed space inside the inner bottle can ensure that the item does not get wet during the test.

[0017] According to another embodiment of the present invention, a detachable bottle cap 22 is also installed on the inner bottle body 2. The bottle cap 22 is used to seal the bottle mouth of the inner bottle body 2, so that a sealed space is formed inside the inner bottle body 2.

[0018] refer to Figure 1 and Figure 2 As shown, in actual use, in a preferred embodiment of the present invention, the model is placed in water as a whole. At this time, the piston injector is connected to the air inlet 13 through the pipe 4. When the piston injector draws out the air from the sealed cavity 3 through the air inlet 13, a negative pressure is formed in the sealed cavity 3. Water from the outside enters the sealed cavity 3 through the water inlet 12. At this time, the model sinks under the combined action of the counterweight 6 and the water. When the piston injector injects air into the sealed cavity 3 again, the water in the sealed cavity 3 is discharged through the water inlet 12 under the action of positive air pressure. At this time, the model floats up. During the floating and sinking process, the items in the inner bottle are always in the sealed space and will not be wetted by water.

[0019] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this utility model.

[0020] Although the present invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter combination within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. An improved submarine diving principle exploration model, comprising an outer bottle body, characterized in that: The front part of the outer bottle body is provided with an axial hole, an inner bottle body is mounted in the axial hole, a sealing layer is arranged between the outer edge of the front end of the inner bottle body and the inner edge of the axial hole, the inner wall of the outer bottle body and the outer wall of the inner bottle body form a sealed cavity, water inlet holes and air inlet holes are arranged at any position of the outer bottle body, the water inlet holes and the air inlet holes are respectively connected with the sealed cavity, and the air inlet holes are connected with external air supply devices through pipelines.

2. The improved submarine submergence and surfacing principle exploration model according to claim 1, characterized in that: The external air supply device is a piston syringe, the air inlet holes are arranged at the axial position of the outer bottle body, and the water inlet holes are arranged at the radial position of the outer bottle body.

3. The improved submarine submergence and surfacing principle exploration model according to claim 1, characterized in that: A counterweight is further fixed to the outer bottle body.

4. The improved submarine submergence and surfacing principle exploration model according to claim 1, characterized in that: The sealing layer is a rubber layer, a detachable bottle cap body is mounted on the inner bottle body, and the bottle cap body is used for sealing the bottle opening of the inner bottle body to form a sealed space in the inner bottle body.

Images